.mid-layout {
  padding: 0 8px;
  flex-grow: 1;
  flex-shrink: 1;
  height: 100vh;
  overflow: auto;
  border-left: 1px solid #e0e0e0;
  border-right: 1px solid #e0e0e0;
}

.flex-center {
  display: flex;
  justify-content: center;
  align-items: center;
}
